html,body{
  font-size: calc(100vw/75);
}
body > .wrap{
  padding-top: 15px;
}
.content > .top{

}
.wrap{
  background-image: url("../img/bg.jpg");
  background-position: top;
  background-repeat: no-repeat;
  min-height: 100vh;
  background-size: 75rem;
}
.bg-box{
  width: 75rem;
  padding-top: 16rem;
  padding-left: 15rem;
  padding-right: 15rem;
}